Flood swards of Atlantic and sub-Atlantic Europe, developed on ground submitted to periodical or occasional inundation and subsequent drying under relatively maritime climates, with Agrostis stolonifera, Carex hirta, Festuca arundinacea, Juncus inflexus, Alopecurus geniculatus, Rumex crispus, Mentha longifolia, Mentha pulegium, Potentilla anserina, Potentilla reptans, Ranunculus repens.